Ah my bad, I had lumped Ogerpon in with the Loyal 3 mentally so that tracks. I also thought they were releasing in dex order too. Thanks!

Note that Ogerpon has 3 masks, therefore 3 forms. Terapogos also comes has 2 other forms. Other than that the last is Pecharunt. I hope these won't be legendary.

I’d imagine that Ogerpon’s forms will be tied with an Uber Rare item (since I doubt all four forms will be given their own summon, nor will all four masks act as a summon for Ogerpon), while Terapagos could follow something similar to Necrozma (very hard to tell here). Pecharunt is Pecharunt, and either unlocks the Loyal Three or is unlocked by summoning the Loyal Three (heavily implied to be the case when the Loyal Three came out, back when the embargo was in effect, thus leaving it to be a “if you know, you know” note)

Ogerpon will probably be the Eggdex unlock, then yeah, Loyal Three unlocking Pecharunt makes sense for how the chain unlocks work. Finding all the forme change items is going to be a chore :/ Better stock up on boxes!

Ogerpon and Terapagos are legendary. Pecharunt is mythical, which is basically the same thing here

Quite honestly, due to the "complex" design of its Tera'd form, I doubt it will be included. Gigantamaxes weren't included for similar reasons and none of the mons with solely those have recieved anything in return yet (Mega Lapras was created three years before Sword and Shield came out).

Yeah, pretty much immediately realized Terapagos wasn't getting it's signature form.

Note that Terapagos does have 2 forms that are able to be sprited! Unsure of what Item we'd need for a form change though-

A tera crystal of some sort?